#main{
    width: 100%;
}
body .col {
    float: left;
}

#main-wrap {
    margin: 0 190px;
    background: red;
    height: 200px;
}

#left {
    background: yellow;
    height: 200px;
    width: 190px;
    /*z-index: 99;*/
    margin-left: -100%;
}

#right {
    background: blue;
    height: 200px;
    width: 190px;
    margin-left: -190px;

}
